/* IBM_PROLOG_BEGIN_TAG                                                   */
/* This is an automatically generated prolog.                             */
/*                                                                        */
/* $Source: hwpf/fapi2/include/utils.H $                                  */
/*                                                                        */
/* IBM CONFIDENTIAL                                                       */
/*                                                                        */
/* EKB Project                                                            */
/*                                                                        */
/* COPYRIGHT 2011,2015                                                    */
/* [+] International Business Machines Corp.                              */
/*                                                                        */
/*                                                                        */
/* The source code for this program is not published or otherwise         */
/* divested of its trade secrets, irrespective of what has been           */
/* deposited with the U.S. Copyright Office.                              */
/*                                                                        */
/* IBM_PROLOG_END_TAG                                                     */
/**
 * @file utils.H
 * @brief Defines common fapi2 utilities
 */

#ifndef FAPI2_UTILS_H_
#define FAPI2_UTILS_H_

#include <stdint.h>
#include <return_code.H>
#include <error_info_defs.H>

namespace fapi2
{
///
/// @brief Log an error.
///
/// @param[in,out] io_rc Reference to ReturnCode (Any references to data and error
///            target are removed and rc value is set to success after
///            function ends.)
/// @param[in] i_sev Fapi error log severity defaulted to unrecoverable
/// @param[in] i_unitTestError - flag to log error which does not cause a unit
///                              test to fail.
///
/// @note This function is called from the ffdc collection classes and no longer
/// needs to be called directly.
/// @note Implemented by platform code
///
void logError(
    fapi2::ReturnCode & io_rc,
    fapi2::errlSeverity_t i_sev = fapi2::FAPI2_ERRL_SEV_UNRECOVERABLE,
    bool i_unitTestError = false );

///
/// @brief Delay this thread. Hostboot will use the nanoseconds parameter
/// and make a syscall to nanosleep. While in the syscall, the hostboot
/// kernel will continue to consume CPU cycles as it looks for a runnable
/// task.  When the delay time expires, the task becomes runnable and will soon
/// return from the syscall.  Callers of delay() in the hostboot environment
/// will likely have to know the mHz clock speed they are running on and
/// compute a non-zero value for i_nanoSeconds.
///
/// On the FSP, it was sometimes acceptable to just provide zero for the
/// sleep delay time, causing the task to yield its time slice. By the
/// time the calling task could run again, it was pretty certain enough
/// host cycles had past.  This is probably not acceptable in
/// the hostboot environment. Callers should calculate and provide a
/// sleep value in nanoseconds relative to host clock speed.
///
/// On FSP when VBU is the target, then the i_simCycles parameter will be
/// used instead.  The FSP needs to use the simdispatcher client/server
/// API and issue a command to the awan to advance the simulation the
/// specified number of cycles.
///
/// @param[in] i_nanoSeconds    nanoseconds to sleep
/// @param[in] i_simCycles      count of Awan cycles to advance
/// @param[in] i_fixed          Determination, for DFT, if this time is
///                             fixed or not. Defaults to non-fixed
///
/// @return ReturnCode. Zero on success, else platform specified error.
///
ReturnCode delay(uint64_t i_nanoSeconds, uint64_t i_simCycles,
                 bool i_fixed = false);

///
/// @brief Assert a condition, and halt
///
/// @param[in] a boolean representing the assertion
///
void Assert(bool i_expression);
};

#endif // FAPI2_UTILS_H_